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@applerocker

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Senior Java engineer specializing in microservices, performance optimization, and scalable backend systems.

China

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What I'm looking for

I'm seeking senior backend roles where I can design scalable microservices, lead architecture, optimize performance, and build reusable components in a collaborative engineering culture.

I am a Java engineer focused on microservices and scalable backend systems, delivering production-ready solutions since 2017.

I have led backend architecture for large projects, including the Fujian Special Operations platform where I implemented runtime data source switching and SQLMap compatibility; at JD I migrated polling to MQ-based workflows and helped grow partner store integration by 70% while resolving connection-pool issues through SQL tuning.

I build reusable components and optimize performance using design patterns, caching, and distributed systems techniques; I enjoy solving production problems, improving reliability, and creating clean, maintainable server-side code.

Experience

Work history, roles, and key accomplishments

Current

Java Engineer

Current

Huibo Yuntong Technology Co., Ltd.

Jul 2024 - Present (1 year 2 months)

Implemented upload/download with Easy-Excel and built a Spring Boot starter wrapping a MyBatis interceptor to enforce permission enhancements across services.

Java Spring Boot MyBatis Git Dynamic Datasource

Java Engineer

Wenchuang Siyu Technology Co., Ltd.

Apr 2023 - Jul 2024 (1 year 3 months)

Led development of the Fujian Special Operations platform from scratch using Dubbo microservices and implemented runtime DB switching, a reusable Redis starter, Easy-ES integration, and unified RPC exception handling.

Dubbo Spring Boot Redis Dynamic Datasource Easy ES

Java Engineer

JD.com Retail

Oct 2021 - Apr 2023 (1 year 6 months)

Optimized the JD Maintenance Verification Platform by replacing polling with MQ-based code-pulling, onboarding third-party stores to increase partner stores by 70%, and resolving connection pool exhaustion via SQL tuning and log monitoring.

Dubbo Redis Kafka MySQL SQL Optimization Monitoring

Java Engineer

Yiqi Xue Online School

Feb 2019 - Sep 2021 (2 years 7 months)

Refactored the order system using Chain of Responsibility and Strategy patterns and introduced Caffeine caching and delayed messages, reducing latency by 30% and lowering DB load.

Java Dubbo Kafka Caffeine Elasticsearch Design Patterns

Java Engineer

Aiparking Technology

Mar 2017 - Feb 2019 (1 year 11 months)

Built the China Resources E-Payment SaaS with H5 modules for parking registration and async ERP integration; implemented payment gateways for WeChat/Alipay using RSA encryption and Redisson distributed locks across 70+ parking lots.

Spring Boot Kafka Redis Alipay Redisson RSA Encryption